Mathematics, 05.08.2020 15:01 diablo666

MATHEMATICS FORM 1 Answer all the questions

1. If 15% of the students in a school are girls and there are 380 students in the school, how many are boys?

2. Find the number of faces, edges and vertices of a rectangular pyramid.

3. Simplify ²/₅ x ¹/₂ x ²/₃

4. If y is a prime number, list the elements of A={y:24≤y≤28}

5. A meeting started at 11:48 am and lasted for 4 hours, 36 minutes. When did the meeting end?

6. Round 23,099,209 to the nearest;
a. Ten
b. Hundred
c. Thousand
d. Ten thousand
e. Hundred thousand
f. Ten million

7. A = {Prime numbers less than 15} and B = {first ten odd numbers} are subsets of the universal set U={Natural numbers less than 20}.
a. List the elements of A, B and U.
b. Find A ∩ B and A ∪ B
c. Find A¹ and B¹

8. A boy spent one-third of his pocket money on food and one-fifth on transport. If he still had GHc7.00 left;
a. Find the fraction spent.
b. Find the fraction left.
c. How much was his pocket money?

9. Find the sum of 91.8, 0.964 and 5.09 and correct your answer to one decimal place.

10. Subtract 27,054,891 from 28,001,003 solution for this

Answers: 1

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Answers

Answer from: carelee1269

for number one

323

Step-by-step explanation:

15%of 380=57380 - 57= 323 girls

Answer from: Quest

were is the equation

Answer from: Quest

x= 1

step-by-step explanation: convert 5\frac{11}{12}5

to improper fraction. use this rule: a \frac{b}{c}=\frac{ac+b}{c}a

ac+b

3.25+0.5x+1\frac{1}{3}+\frac{5}{6}x=\frac{5\times 12+11}{12}3.25+0.5x+1

5×12+11

2 simplify 5\times 125×12 to 6060

3.25+0.5x+1\frac{1}{3}+\frac{5}{6}x=\frac{60+11}{12}3.25+0.5x+1

60+11

3 simplify 60+1160+11 to 7171

3.25+0.5x+1\frac{1}{3}+\frac{5}{6}x=\frac{71}{12}3.25+0.5x+1

4 simplify \frac{5}{6}x

x to \frac{5x}{6}

3.25+0.5x+1\frac{1}{3}+\frac{5x}{6}=\frac{71}{12}3.25+0.5x+1

5 convert 1\frac{1}{3}1

to improper fraction. use this rule: a \frac{b}{c}=\frac{ac+b}{c}a

ac+b

3.25+0.5x+\frac{1\times 3+1}{3}+\frac{5x}{6}=\frac{71}{12}3.25+0.5x+

1×3+1

6 simplify 1\times 31×3 to 33

3.25+0.5x+\frac{3+1}{3}+\frac{5x}{6}=\frac{71}{12}3.25+0.5x+

3+1

7 simplify 3+13+1 to 44

3.25+0.5x+\frac{4}{3}+\frac{5x}{6}=\frac{71}{12}3.25+0.5x+

8 simplify 3.25+0.5x+\frac{4}{3}+\frac{5x}{6}3.25+0.5x+

to \frac{13.75}{3}+\frac{4x}{3}

13.75

\frac{13.75}{3}+\frac{4x}{3}=\frac{71}{12}

13.75

9 simplify \frac{13.75}{3}

13.75

to 4.5833334.583333

4.583333+\frac{4x}{3}=\frac{71}{12}4.583333+

10 subtract 4.5833334.583333 from both sides

\frac{4x}{3}=\frac{71}{12}-4.583333

−4.583333

11 simplify \frac{71}{12}-4.583333

−4.583333 to \frac{4}{3}

\frac{4x}{3}=\frac{4}{3}

12 multiply both sides by 33

4x=\frac{4}{3}\times 34x=

×3

13 simplify \frac{4}{3}\times 3

×3 to \frac{12}{3}

4x=\frac{12}{3}4x=

14 simplify \frac{12}{3}

to 44

4x=44x=4

15 divide both sides by 44

x=1

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*MATHEMATICS FORM 1* *Answer all the questions*

*1.* If 15% of the students in a school...